acts_as_xlsx lets you turn any ActiveRecord::Base inheriting class into an excel spreadsheet. It can be added to any finder method or scope chain and can use localized column and sheet names with I18n.

A Rails library for storing user sessions in a backend database

Chamber lets you source your Settings from an arbitrary number of YAML files and provides a simple mechanism for overriding settings from the ENV, which is friendly to how Heroku addons work.

Mine remote data into your ActiveRecord models. You can also perform associations and convert units.

Stores draft versions of your ActiveRecord models' data in a single table or split up into separate tables. Works with Ruby on Rails and Sinatra.

FastPage applies the MySQL "deferred join" optimization to your ActiveRecord offset/limit queries.

ruby-plsql gem provides simple Ruby API for calling Oracle PL/SQL procedures. It could be used both for accessing Oracle PL/SQL API procedures in legacy applications as well as it could be used to create PL/SQL unit tests using Ruby testing libraries.

Functional Reactive Programming with EventSourcing in Ruby

Functional Reactive Programming with EventSourcing in Ruby

Preload ActiveRecord associations with graphql-batch

The JitPreloader has the ability to send notifications when N+1 queries occur to help guage how problematic they are for your code base and a way to remove all of the commons explicitly or automatically

Log transitions on a state machine to support auditing and business process analytics.

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

JRuby gem for performing multidimensional queries of relational database data using Mondrian OLAP Java library

Push your Active Record models' scopes up to the surface

A Postgres advisory lock client

RGeo is a geospatial data library for Ruby. RGeo::ActiveRecord is an optional RGeo module providing some spatial extensions to ActiveRecord, as well as common tools used by RGeo-based spatial adapters.

SchemaValidations extends ActiveRecord to automatically create validations by inspecting the database schema. This makes your models more DRY as you no longer need to duplicate NOT NULL, unique, numeric and varchar constraints on the model level.

Mine remote data into your ActiveRecord models. You can also perform associations and convert units.